Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 7 of 7

Thread: Hi temp union reliability? Any experience with these?

  1. Back To Top    #1

    Join Date
    Jul 2016
    Location
    San Francisco
    Posts
    28

    Hi temp union reliability? Any experience with these?

    High-Temp Union - CMP

    Anyone install any of these and find them to be reliable? Means no leak after say a year or two?

    21063-200-000

    21063-290-000

    I want to install
    21063-290-000 if I can get my hands on one. Otherwise will have to improvise and use
    21063-200-000. Some people say they are not reliable. I have no clue. I am a newbie pool owner and tired of a small leak I see at the current discharge spot. Thanks in advance.

  2. Back To Top    #2

    TFP Guide

    In the Industry

    Join Date
    Apr 2015
    Location
    tucson, arizona
    Posts
    946

    Re: Hi temp union reliability? Any experience with these?

    They seem to be very reliable, but they rely on a o ring to seal. And just like all o-rings they need to be replaced from time to time. I do like the CMP unions better than the Praher, The best thing is parts are replaceable instead of having a to cut and replace regular male adapters or threaded nipples.21063-290-000 - CUSTOM MOLDED PRODUCTS, INC - UNION, 2" MPT x 2" SWEEP 90 DEG ELL

  3. Back To Top    #3

    Join Date
    Jul 2016
    Location
    San Francisco
    Posts
    28

    Re: Hi temp union reliability? Any experience with these?

    Quote Originally Posted by kadavis View Post
    They seem to be very reliable, but they rely on a o ring to seal. And just like all o-rings they need to be replaced from time to time. I do like the CMP unions better than the Praher, The best thing is parts are replaceable instead of having a to cut and replace regular male adapters or threaded nipples.21063-290-000 - CUSTOM MOLDED PRODUCTS, INC - UNION, 2" MPT x 2" SWEEP 90 DEG ELL
    Can you define "time to time"? I'm OK with an annual replacement of a O ring provided its easy to replace. I'm not OK with every other month or even every six months. Seems like nuisance. Do you use the 90 degree elbow one? Do you know the measurements? If I go with it, it has to be the same height (and other dimensions) as my current setup which is a threaded nipple from the pump leading to a street elbow. Otherwise I need to replumb everything just to use it.

  4. Back To Top    #4


    TFP Guide

    cowboycasey's Avatar
    Join Date
    Jul 2013
    Location
    Fletcher, OK
    Posts
    3,346

    Re: Hi temp union reliability? Any experience with these?

    mine have been on for 2 years now and no leaks I have 2 on my pump, 1 on the skimmer and 3 on the return/suction..



    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

  5. Back To Top    #5

    TFP Guide

    In the Industry

    Join Date
    Apr 2015
    Location
    tucson, arizona
    Posts
    946

    Re: Hi temp union reliability? Any experience with these?

    In the desert o-rings seem to dry out more than other areas with higher humidity. Probably every couple years in most places. I have used the 90 sweep but I never measured the exact distance to the center of 90. Either way you will have to cut your PVC and line up the plumbing. Inyo pools website also has these and you can leave your question or call them

  6. Back To Top    #6

    Join Date
    Jul 2016
    Location
    San Francisco
    Posts
    28

    Re: Hi temp union reliability? Any experience with these?

    Thanks to everyone who responded so far. Its very helpful. I will have to find out about the sweep. I lined things up with the regular union and it would force me to change more plumbing that I wish to. Specifically it would force me change all piping leading to my sand filter and also use a fitting extender leading right into it. This includes sanding off paint and a raised branding logo on the fitting in order to install the fitting extender properly.

  7. Back To Top    #7

    In the Industry

    Join Date
    Jan 2012
    Posts
    340

    Re: Hi temp union reliability? Any experience with these?

    We order these by the case and use them on basically everything that does not have a built in union. Have been using them for 5-6 years in North Florida and I have never had to go out and swap an o-ring.
    25K aggregate IG, Intellipro, FNS48, Polaris 360, PG2000 fiber optic light source

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •